64 x 89 card sleeves Inner (BCW) These are Guardhouse Shield Standard Card 100 Count Sleeves made by the good people over at Transline Card Sleeves - Standard 64x89mm

Cards like "Harpie Channeler", "Elegant Egotist", Summoner Monk", and "Hysteric Party" allow the Deck to Summon multiple Harpies quickly and Summon multiple monsters from the Extra Deck

Are you into Pokemon TCG Pocket as well

Cyberload Fusion X SPELL Quick-Play Fusion Summon 1 Fusion Monster from your Extra Deck that lists a "Cyber Dragon" monster as material, by shuffling the Fusion Materials listed on it into the Deck, from among your cards on the field and/or your face-up banished cards, but monsters you control cannot attack for the rest of this turn, except that Fusion Summoned monster

Deploy the powerful Rank 7 Xyz monsters in your Extra Deck depending on the situation and march toward victory